SIMPLE  =                    T / file does conform to FITS standard             BITPIX  =                    8 / number of bits per data pixel                  NAXIS   =                    0 / number of data axes                            EXTEND  =                    T / FITS dataset may contain extensions            COMMENT   FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT   and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H TELESCOP= 'SWIFT   '           / Telescope (mission) name                       INSTRUME= 'UVOTA   '           / Instrument name                                FILTER  = 'WHITE   '           / FILTER used in exposure                        DETNAM  = '2000    '           / WHEELPOS                                       OBS_ID  = '01013852000'        / Observation ID                                 TARG_ID = '1013852 '           / Target ID                                      SEG_NUM = '0       '           / Segment number                                 TIMESYS = 'TT      '           / Time system                                    MJDREFI =               51910. / Reference MJD Integer part                     MJDREFF =        0.00074287037 / Reference MJD fractional                       TIMEUNIT= 's       '           / Time unit for the time header keywords         TIERRELA=              1.0E-08 / [s/s] Estimated relative clock rate error      TIERABSO=                   1. / [s] Estimated absolute clock offset error      TSTART  =      630227509.03758 / Start time                                     DATE-OBS= '2020-12-21T07:11:49.0' / Start Date                                  TSTOP   =      630227658.89454 / Stop time                                      DATE-END= '2020-12-21T07:14:18.9' / Stop Date                                   CLOCKAPP=                    F / If clock correction are applied (F/T)          ORIGIN  = 'GSFC    '           / Source of FITS file                            CREATOR = 'TDRSS2FITS V3.21'   / Program that created this FITS file            TLM2FITS= 'V3.21   '           / Telemetry converter version number             DATE    = '2020-12-21T07:17:28' / file creation date (YYYY-MM-DDThh:mm:ss UT)   UTCFINIT=            -26.19022 / UTCF at TSTART                                 CHECKSUM= 'EiofEgmZEgmdEgmZ'   / HDU checksum updated 2020-12-21T07:17:28       DATASUM = '         0'         / data unit checksum updated 2020-12-21T07:17:28 END                                                                                                                                                                                                                                                                                                                                                                                                             XTENSION= 'IMAGE   '           / IMAGE extension                                BITPIX  =                   32 / number of bits per data pixel                  NAXIS   =                    2 / number of data axes                            NAXIS1  =                  160 / length of data axis 1                          NAXIS2  =                  160 / length of data axis 2                          PCOUNT  =                    0 / required keyword; must = 0                     GCOUNT  =                    1 / required keyword; must = 1                     MESGNAME= 'UVOT_GENI_IMAGE'    / Name of the message                            TELESCOP= 'SWIFT   '           / Telescope (mission) name                       INSTRUME= 'UVOTA   '           / Instrument name                                OBS_ID  = '01013852000'        / Observation ID                                 TARG_ID = '1013852 '           / Target ID                                      SEG_NUM = '0       '           / Segment number                                 CREATOR = 'TDRSS2FITS V3.21'   / Program that created this FITS file            ORIGIN  = 'GSFC    '           / Source of FITS file                            TLM2FITS= 'V3.21   '           / Telemetry converter version number             EQUINOX =                 2000 / Equinox                                        RADECSYS= 'FK5     '           / Coordinates system                             TIMESYS = 'TT      '           / Time system                                    MJDREFI =               51910. / Reference MJD Integer part                     MJDREFF =        0.00074287037 / Reference MJD fractional                       TIMEUNIT= 's       '           / Time unit for the time header keywords         TIERRELA=              1.0E-08 / [s/s] Estimated relative clock rate error      TIERABSO=                   1. / [s] Estimated absolute clock offset error      CLOCKAPP=                    F / If clock correction are applied (F/T)          TIMEREF = 'LOCAL   '           / Time reference (barycenter/local)              TASSIGN = 'SATELLITE'          / Time assigned by clock                         DATE    = '2020-12-21T07:17:28' / file creation date (YYYY-MM-DDThh:mm:ss UT)   UTCFINIT=            -26.19022 / UTCF at TSTART                                 TSTART  =      630227509.03758 / Start time                                     DATE-OBS= '2020-12-21T07:11:49.0' / Start Date                                  TSTOP   =      630227658.89454 / Stop time                                      DATE-END= '2020-12-21T07:14:18.9' / Stop Date                                   TELAPSE =     149.856960058212 / TSTOP - TSTART                                 ONTIME  =     149.856960058212 / Sum of GTIs                                    LIVETIME=     149.856960058212 / Ontime multiplied by DEADC                     EXPOSURE=     149.856960058212 / Total exposure, with all known correction      DEADC   =                   1. / dead time correction                           EXTNAME = 'wh630227509I'       / Extension name                                 HDUCLASS= 'OGIP    '           / Format conforms to OGIP standards              HDUCLAS1= 'IMAGE   '           / Image data                                     HDUCLAS2= 'TOTAL   '           / Total data values                              DATAMODE= 'IMAGEEVENT'         / Instrument operating mode                      EXPID   =            630227509 / uvot EXPosure ID                               FILTER  = 'WHITE   '           / FILTER used in exposure                        DETNAM  = '2000    '           / WHEELPOS                                       RA_PNT  =     214.509247920357 / [deg] Ra Pointing                              DEC_PNT =    -45.4261133132965 / [deg] Dec Pointing                             PA_PNT  =             83.05141 / [deg] Position angle (roll)                    WINDOWX0=                  611 / Lower left hand X                              WINDOWY0=                  837 / Lower left hand Y                              WINDOWDX=                  320 / X Window width                                 WINDOWDY=                  320 / Y Window width                                 NFRAMES =                13574 / number of frames included                      GRBLOC  =                    0 / GRB Location 1=XRT 0=MODE CMD                  BPEHWIN =                    0 / BPE hardware window height                     BINX    =                    2 / Binning in the x-axis                          BINY    =                    2 / Binning in the y-axis                          CMPCNTMN=                    F / Compression losses didn't occurred in the imageCMPOTHRS=                 8191 / Overflow of lossy compression algorithm        CMPUTHRS=                -8192 / Underflow of lossy compression algorithm       CTYPE1  = 'RAWX    '           / WCS  axis type                                 CUNIT1  = 'pixel   '           / WCS axis unit                                  CRVAL1  =                611.5 / WCS reference value                            CDELT1  =                    2 / WCS coordinate increment                       CRPIX1  =                   1. / WCS Reference point                            CTYPE2  = 'RAWY    '           / WCS  axis type                                 CUNIT2  = 'pixel   '           / WCS axis unit                                  CRVAL2  =                837.5 / WCS reference value                            CDELT2  =                    2 / WCS coordinate increment                       CRPIX2  =                   1. / WCS Reference point                            UTCCTIME=            -26.19022 / [s] UTC Correction time                        UTCCSEC =                  -27 / UTC Correction Seconds                         UTCCSUBS=                40489 / [2*10**(-5) s] UTC Correction SubSeconds       PKTTIME =      630227768.49564 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5      PKTSEC  =            630227768 / ccsds PacKeT SEConds                           PKTSUBS =                24782 / [2*10**(-5) s] ccsds PacKeT SUBSeconds         APID    =                  843 / Application Process Identifier                 BLANK   =          -2147483648 / Data null value                                CHECKSUM= 'C6AhE68fC6AfC65f'   / HDU checksum updated 2020-12-21T07:17:28       DATASUM = '700807  '           / data unit checksum updated 2020-12-21T07:17:28 END                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             # #""!+/  01B.#'#"#$""
!  "#/5I6"&&(  #%#""%(00'*!)<%*.%$!! "!'
6ZiNI)!   "!  $#!  *=62?)$	#!'#(# !&!>\mB, "($$ $( !)<;H=1+ -!"&!$ $"&!,1=3" #):.#% !% ! ! #%%))!  # !#$ !)%
 !% "$ ! &  ! !%% !  "" !"!"#!"!("&#!* $ ! ) #%!!""$$% '   #!!!$#
'$!  $
!#(  #%
% 
 #$ !! "$# "! ) 0"&$ ! !#!  &"&"$)*! !'*!'!!,:-! $"# !         "" *%1#/04 !#& !
" % ' %&%##" &15)!!
#!(%""'"  !$#" !)!!
! 
# & # ( )!'!!$( !% ! &#$%# ""*&
& "!%" %"&#  $$ &"  " "%#!#! 

  ! "" #(" "$""!
 !+!"$%%"&" "!#&#"##"& ""! 
$%(!("!! 
*""!!#% $# &#! # !% $ !#&
"!)" "$ !'""
!!! & $(& #%%%#"" !%%"$,"!!$%"$!"!$"%3)5!&"""#/-!$  $#!$   &! 
'Vvf/ &  
.*$'$"#!! " "#$ !(&' 
<i��s($"$""(! !  !""!!#!!!!!-C/'*%'"!"2=��i-"& "%/!!%'
 %#5>64")" ):YB*#  !!!  "%"!!##! ( +"-661%!(%%"!&**
 " -6,*   &(!*#!"(!1<-!$ "!'%>8;3    $$ ! !-)9! $"$  0.+*$!"$!##  !""(%'!$$" ' !   $&
%+$," #$ ! ##
"#
&!"! "
 " !)!!!! !")" (!) *" "&)"#$#!!  ,! # '! #"&"" 
""!$)&("#!)(%  !%!&#!#$!! * ##""!"   '.;(#&#!&(! !.!&#&"/UnZ0!$!!&"  % !#" "))%" 
!   %"!!
#%&@cuM #"&"+(+"#% $!&%
! !!!#"=AUA$%+*!"  !)#%#! " %"
##"63!# ! " !!*$+ 0##!$$%$  """"
'!"
 !&"! !%%.)!# '"'") ""&'  !"'"#% !'  "!$$"#"  !"  !'!#&)  "%  )%% !% !#  $#"#"!$"!('$
!*!&$  "   !"
$$!!#"0.("" ) '# # ' "%$$!!)$ )""#"!$6$ ! "&$,#(!'#+%&) "# 7"%+"$"*"'".!5,(! %#!#')@@.' # 
/890?-!($   2'$'&"!'! /,I5/)%$A9%&# #  (% -7F<3!"/<@5;6$ $$+"$  (,$#"$(()"&((#FbLD '+,!$ !!!'!+*!!=1(' '-D<=8+$! * !!($!!$!%$ ! )$ *BED'& " $!""()+%
*%#  $#.8/,   !) "$$!   '%0)!#"!""BVHA'  !&&$-!.#"%!## 
+" '#%! (=_];  &##
 $&!' #%# " ! " 
'1ON/!"!6%:+%%!     -!3!  ""'# %14($ $!,>90(!#!!#)&		"$#!! !"!" !!$$"!+:"&  #"		
&"$
"#!.   -##
#!&$		
!,'")!#  !   #)$

$$ "##"'!&"#!" !$&%
 " % !%'"(


'$&$& !   " $""%"&)"%

	)!!%%&(%  !!!!$ '"!!

#" !
:}�L

"#$ ""&!!'&#$&! #)*""
/
w
p-

 "!!$( %?71% 
& !$%!#$"%!
0
��w
��!
	#$(!%!"#!!0+4B'!# 
"" ,"

.�\
�:"!  4+&) #"'##' 	u
��,	"' "&"    "   $"   $#!$
! !!$#!"!'!" !' #!$"!!# % "%'!$	

!$&& &$!$ % #!$!# !%1$$' 




#.%&(#!'"!!"!!## $0 #(*
%%!3!! $
"#
 + !"%!  # ! &

$ %!"$" !
!#%#"& ( !!%! %("*" )$'!" !""! "'%""
!#"%'!" !#)! $ % ""!!$$! !-" #!"!!#! *
/="!'+&!#!  &#"!!%# "#.>@:*'&" ! !!$ *, "  "-# # $" &;/3-!  &!! .!&  !  !'"!#"#" $& (!!%)& $ #$%"#"!! !*$ !%$$ "  " # ! $###'." #!!$$ +-," %"%#)"%' '#$#/.*##%'&! !"#!"$'$$## "#   $*"$ 	  !!"1431% ! % +# &$$  !13'$%
$!&#!#"$'!'"#!$! %!,1]`3# "#! ""'! "%!" !$# "$! '%!$%$ !$ & 7Wt�]-! '"# "!   !" $%"'   ' 
 !%#%#A_ua+$&%##& "" $ $%!!%  ""<44'
#%!# !#'  '!#$% !  $$ #
 !!% "%  $! # )1C4'#"$ #!"!)$$!!"$"$!!!"$$! "#8�
�D#', #!! '!#   "
# #!
( #4�
~!
}�>%"! %)"# *! $
'!##&(!  &
Ny8
n_&!$% ()(! !"#!$! !"&$,%'&# "!'@�
$
b�K"!,$)   $"%!
  #%
) &! & %)6W�=!#' " $!! !$#   """"#&"31& !!! )"!# !!"$!"!&!"'$%+$%'""  !$ #!!!##-$" ! %! !!"1*#! ! $""%$&! %5N8@(!!!#$$% $$ !"! )#!"$5NSI:"!"! "*   &"! $$.TF-! !!.A81"$%$$  !!! "
"!"$%#!
(D�
,
b9-  %$"'/($#!# !"##!  "A��
�
}

r#" # !& "! " ( %
!"  #<z

s
.�(!"  (!"" !,  !!#"" #$" %"!<{��S!!# # ! #"" " ""&#$*# !#):J;6  !!##&!!#(!$%"'  $#$$# &  "#$!$'!" # ""% ' #" !0+!  !  ! " &" " ## !'"!% !+%  " ## ! "
 " (  ! %" !!$   % !($!#"!"!"' +!$!!( ! 
!" "# $!%! #
  $##"! "# $ "$+""! 	!$	&"!!$ '!$ #!!&$!"%# %!&" ## !$"   #&""!    !'!  & #  !"$ "(#"%# &(!& "  %
$  (!!!( ! !&!"!!"! ! #!%$"  "&!!!'(!
 #! '!! & !#  $+  "# 4*%"% &7C8(##"#
"!!$ # "! %839, $&0ISV+# !!
  !$# -++ '$)+#"$8XnB"
"   %!#""$"! )! $!  #! 
.DF6 "%" 
  !! "  ("*!" &6 !-  )%%"(&  "$ %! !!""  "!%# %! +$%"  $ " #!%! !#""!"')!
'%%%!!!!,! !  #+  $$& %  !"#$"&" #"# &!!##-/-   #! %  *!& ! $$@m�M(!""$$$"  !# $! !#  !f���8"-'"!)&  !#"""!!""  '  @^��P* &!%!#! ##&!""-  !"!!!1NG6*! "
  '$&!3,"  
!!&3(!$'!$ "%"$/e�mI/!#(# ! ! !!##!!"""&#&"!! $" "
/;l��t0%+ "$!$  !"$!"%'$ !$!
$#%$#Dd�j/(#!
 #" $!" #!!)6ED"(# 
#""#(%! !!!#!!  , "" "" %$ "  %&# $&"(!"%"$&"" #"!)!!",! #!&    ) ! !
#
!%!!""! "! #!"!
$ $  !%!'!#(# "! $"% $3%#$$+ % $!0.*&!! #!"%&! $! $  !% *-,%
!$ &'!"(! 
$$#"#' ## !!!  !!""! #
!!#$#" !$&#% #$ &!
 "&& #'!  " #!#"'!#& $#!!( ""#!$ # '#!!3+(+"!"
" #%##$("!#
!	

 *&&"$%(33&#! "! """ !#  ""#1, &7,3$ !#&"#"""!  # #!!-!)%  #'#$# # #!" %"+!"

%&&!&! !$"% ("% !!$ 
' "

  "%  "%$! '%


  #"!!" " %
! %# !" #! &" & %! !!"##""
"$ !# !$( ' !&6u�m#&  !" #" !# ,
$C�^
7!!%! # %"!$ $ "
&!! ""\
%���
# !  ##$#" "" "%"   
 $!$$ !!#$!@�
�I�"* $!"&#!%"#$#$%#!&&$ @�
�
�&'#% ""  '!$ "#%%" &#!$" "!-!"$* *


)Yp!%$! # $  " !#&$&   
(	  # ""!!#""   #" "!%$" 


!'!! !##!!! !!"#"#"#%"#